A landscape survey, including some limited trial trenching, was carried out by D Graham for Waverley Borough Council, as part of a programme designed to assisst with the management of the park. The initial ground survey recorded the remains of open field systems in the form of ridge and furrow strips of probable medieval date, including one apparently overlain by the park’s boundary, established in 1376-77. Evidence for industrial activity was seen in the form of small clay diggings, some of which were close to the site of a previously discovered medieval tile kiln.
Examination of a series of tunnels below this road was carried out by members of Subterranea Britannica, at the request of SCC’s County Roads Group. The tunnels are almost certainly service tunnels associated with the now demolished Ewell House and probably date to the late 17th or early 18th centuries. Some of the tunnels are lined with brick, others are just left as the sandstone they have been cut through. Later modification included ornamentation of some of the tunnels and use as a WWII air-raid shelter.
Watching brief carried out by D Graham of SyAS during construction of an extension to the existing building showed that the site had been terraced when the house was built and the topsoil dumped in the area of the new extension. Beneath this, a layer of chalk interspersed with occasional narrow 'Tudor' brick ran across the site. This layer probably represents the demolition rubble from a chalk and brick building, possibly of 17th century date, which presumably stood somewhere in the immediate vicinity.
Excavation by SHAHT, under the direction of G Cole, revealed evidence of prehistoric, medieval and later activity. Two phases of prehistoric activity were recorded. The first comprised the terminal ends of two ditches, one truncating the other, together with the lower levels of a rampart and a series of post-bases; and the second comprised flint foundations and associated stake holes. Fragmentary remains of two hearth bases were noted, and a well from which medieval pottery and hearth fragments were recovered was partially excavated.
Excavation by J McKinley of Wessex, for MEPC UK Ltd, in advance of redevelopment. At the front of the site a few features of Late Iron Age date were revealed, sealed below a ploughsoil. Above this soil a series of floor levels associated with hearths, pits and post holes was identified, all of early Romano-British date. Further back from the street frontage, a quantity of intercutting pits of early Romano-British date were revealed, which contained a quantity of domestic rubbish.
Excavation and a watching brief by D Hopkinson of AOC, for Countryside Properties (Commercial) PLC, of the site of Phase 5 of the Chertsey Revitalisation Scheme, following an evaluation in 1997. The earliest evidence revealed was a series of intercutting Saxo-Norman gullies, apparently demarcating an enclosure extending to the north and west, with an opening in its south east corner. A series of pits and ditches of 14th - mid 16th century date appear to be the next phase of activity. Two major ditches of this date defined plots alongside Guildford Street.
Evaluation by G Hull of TVAS, for The Berkeley Group PLC, in advance of the construction of a private medical clinic. No direct evidence for a post-medieval house on the site (demolished in the 19th century) was found, although possible indications of its gardens were recorded. Much of the site appeared to have been terraced and landscaped, removing any earlier structural remains. Some of the 17th century pottery recovered suggests the presence of a kiln nearby during this period.
A watching brief was maintained by M Dover of SCAU, for Guardian Properties Ltd, on the excavation of a number of foundation bases. Differences in the levels of the natural chalk encountered were interpreted as possible quarrying activity or intercutting pitting, with a probable 17th or 18th century infilling episode above. No earlier features were recorded.
Test trenching by D Graham of SyAS confirmed that the low platform visible just outside and slightly to the north of the postern gate of Farnham Castle is in fact a laid gravel surface. The feature was first noted during a landscape survey in 1998 and appears to lie at the western end of a slight flattened bank that runs through the Park
Watching brief by K Sabel of PCA on geotechnical trial pits. Evidence for the 17th-18th century origins of the building were revealed, including earlier foundations, drainage and timber flooring. Remains pre-dating Waterloo House were also revealed, in the form of surviving post-medieval layers and residual medieval building material. Considerable evidence of Saxon/Early Medieval occupation was recovered also.